Water-scoop apparatus.



D. F. CRAWFORD.

WATER SCOOP APPARATUS.

APPLrcArloN mso AuG.2. me.

' 1 l v Il l l l Y Patented Aug. 27, 1918.

2 SHEETS-SHEET l.

D. F. CRAWFORD.

WATER SCOOP APPARATUS.

APPLICATION FILED Au,a.2. IsIe.

l ,276,88@ Patented Aug. 27, 1918.

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DAVID F. CRAWFORD, OF PITTSBURGH, PENNSYLVANIA.

WATER-SCOOP APPARATUS.

remesa. i

Specification of Letters Patent.

Application led August 2, 1916. Serial No. 112,702.

To all whom t may concern: i

Be it known that l, DAVID F.CRAwronD, a citizen of the United States, residing` at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Tater- Scoop Apparatus, of which the following is a specification. v r v The invention relates to water scoop constructions for use on locomotive tenders, and the like, where it is desirable to take up water from the so-called track pans or troughs as the tenders move along such troughs. Scoops of this` general type have been long used and work satisfactorily at relatively high speeds, say thirty miles per hour or over, but at slow speeds these scoops will not take up sufficient water to supply the tanks. The principal object of thisinvention is to provide an improved scoop appaiatiisvhich will take up water and supply it to the tanks in sufficient quantity regardless of the rate of movement of the tender. tion are illustrated in the accompanying drawings, wherein- Figure 1 is a partial section and partial side elevation showing the apparatus of my invention applied to a locomotive tender;

Fig. 2 is a side elevation showing a modiiication; Fig. 3 is a view similar to thatfof Fig. 1 of a modification; and Fig. 4 is a side elevation of still another modification.

Referring first to the construction of Fig.

1, the reference numeral 1 indicates the tender of a locomotive provided with a main tank 2 of ordinary construction and a supplemental tank 3 located below the main tank. Mounted beneath the tender is the scoop 4 which may be of any approved construction and is pivotally supported at 5 in the usual way so that the scoop may be swung upk out of the way when not in use, the links 6 with the crank 7 and other appropriate connections not shown, being employed for securing this movement. The scoop leads into a short conduit 8 which projects into the tank 3, and leading from the tank 3 to the upper end of the tank 2 is another conduit 9.

. The lower end of the conduit 9 is provided with an enlargement 10 having its inlet near the bottom of the tank 3, and in this enlargement 10 is an ejector consisting of the conical sleeves 11 arranged as illustrated, and the steam or compressed air pipe 12 directed Certain embodiments of the invenn upwardly through the series of sleeves. In operation, the scoop occupies the position indicated in the drawing, and the forward movement of the tender, even at relatively slow speeds, is sufiicientY to cause a flow of water through the conduit 8 linto the tank 3, since the distance which the water must be raised is relatively slight. The ejector is then utilized to secure an elevation of the water from the tank 3 to the upper end of the tank 2, Steam being admitted through the pipe 12 and controlled in any suitable way, as for instance, by a valve in the cab of the engine. This operation of the. ejector may occur either at the time water is being supplied by the scoop 4 or afterward. The invention is not confined to the use of 'an ejector for lifting the water from the tank 3 the ejector is caused to operate as soon asthe` scoop enters the water, the Water being forced up through the conduit 19 leading to the tank, not shown. The power supplied yby the ejector augmente that incident to the Patented Aug. 27, 1918.

travel of the scoop along the trough, so v that when the speed of the tender is not suiiicient to give the water the necessary lift, the ejector provides the additional power necessary. When the tender is running at a sufiiciently high speed to secure the lift without the use of the ejector, such ejector is of course not operated.

Fig. 3 illustrates still another modification wherein the scoop 20 is pivoted` at 21 and operated by the members 22 and 23 corresponding to similar parts in Fig. 1. In this construction a supplemental tank 24 is also used, such tank being provided with an ejector 25 operated by a steam pipe 26 as in the construction of Fig. 1. Two conduits 27 and 28 are also provided with a butterfly valve 29 at their juncture. The conduit 28 passes through the tank 24 and has an opening 30 on its lower side. When the tender is ruiming at slow speeds the water from the scoop is lifted only to the tank, just as in the apparatus of Fig. l. If,

however, the tender is running at a high rate of speed and sufficient to lift the water without the aid of the ejector, the butterfly valve 29 occupies the position indicated in full lines, and sufficient pressure is accumulated after the tank 24 is filled to cause a fiow of water upward through the conduit 28 and up into the main tank.

Fig. i illustrates another modification differing from that of F ig. 2 only in that the ejector 31 is located in the conduit 32 instead of being located in the scoop 33. Steam or air is supplied for operating the ejector through the pipe 34, and the scoop is operated from the members 35 and 36 as in the other forms of construction.

lVhat I claim is:

1 The combination in a vehicle provided with a main upper tank, of a lower supplemental tank, a scoop beneath the vehicle opening forwardly so as to scoop up water as the vehicle moves over a water trough, a conduit leading from the scoop to the main tank and having an intermediate open ing into the supplemental tank, a second conduit leading from the supplemental tank to the main tank, and water lifting means for carrying water from the supplemental tank to the main tank.

2. The combination ina vehicle provided yCopies of this patent may be obtained for with a main upper tank, of a lower supple mental tank, a scoop beneath the vehicle opening forwardly so as to scoop up water as the vehicle moves over a water trough, a conduit leading from the scoop to the main tank and having an intermediate opening into the suplemental tank, a second conduit leading from the supplemental tank to the upper end of the first conduit, a Valve for closing communication between the upper end of the second conduit and the first conduit, and water lifting means for carrying water from the supplemental tank to the main tank.

3. The combination in a vehicle provided with a main upper tank, of a lower supplemental tank, a scoop beneath the vehicle opening forwardly so as to scoop up water as the vehicle moves over a Water trough, a

conduit leading from the scoop to the supplemental tank, a. second conduit leading from the supplemental tank to the main tank, and water lifting means for carrying the water from the supplemental tank to the main tank.

4t. The combination in a vehicle provided with a main upper tank, of a lower supplemental tank, a scoop beneath the vehicle opening forwardly so as to scoop up water as the Vehicle 'moves over a waterV trough, a conduit leading from the scoop to the supplemental tank, a second conduit leading from the supplemental tank to the main tank, and an ejector for carrying the water from the supplemental tank to the main tank.

DAVID F. CRAWFORD.

ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

